Peckham Riviera Where is it? The clue’s in the name; Peckham, South London. To be precise, Unit 4 Dovedale Trading Estate, London SE15 4QN. Opening hours? Til 12am, seven days a week. What is it? A jack of all trades but master of none. Which is to say it’s an outdoor bar under a plastic canopy serving (overpriced) cocktails, craft…